The House of Cecil is a prominent English noble family that rose to power during the late 15th century. Founded by William Cecil, who served as chief advisor to Queen Elizabeth I, the family played a significant role in the politics of the Tudor period. Their influence extended through various generations, with members holding key positions in government and the monarchy. The family's legacy includes the establishment of Hatfield House, a historic estate in Hertfordshire, which remains a symbol of their enduring status. The Cecils were known for their political acumen and connections, shaping English history through their alliances and contributions to the crown.